Effect of Feeding Regime on Compensatory Growth of Juvenile Abalone, Haliotis discus hannai, Fed on the Dry Sea Tangle, Laminaria japonica
Effect of Feeding Regime on Compensatory Growth of Juvenile Abalone, Haliotis discus hannai, Fed on the Dry Sea Tangle, Laminaria japonica
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DOI：
10.1111/j.1749-7345.2010.00451.x
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发表时间：
2011-02
影响因子：
2.8
通讯作者：
S. Cho;Young-Jin Cho;C. Choi
中科院分区：
文献类型：
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作者：
S. Cho;Young-Jin Cho;C. Choi
以干海带为饵料，研究了不同投喂方式对皱纹盘鲍（Haliotis discus hannai）幼鲍补偿生长的影响。将30只平均体重为15.7g的幼鲍随机放入18个50 L的塑料矩形容器中。一式三份制备六种处理：对照组（Con）每天喂1次干海带，饥饿1周后，每天喂1次干海带，饥饿1周后，每天喂1次干海带，饥饿1周后，每天喂1次干海带，饥饿1周后，每天喂1次干海带S1处理组、S2处理组、S3处理组、S4处理组和S6处理组分别在饥饿2周、饥饿3周、饥饿4周和饥饿6周后处理。鲍体重变化与饥饿周数呈线性关系：Y（鲍体重）=-0.17X（饥饿周数）+ 15.89（R2 = 0.9462）（P < 0.0001）。S2处理的鲍鱼存活率最高，但与Con、S1和S3处理的鲍鱼存活率无显著差异。Con组鲍鱼增重高于S4和S6组。在饥饿3周时，以干海带为食的鲍鱼似乎能够实现完全补偿性生长。
Effect of feeding regime on compensatory growth of juvenile abalone (Haliotis discus hannai) fed on the dry sea tangle (Laminaria japonica) was determined. Thirty juvenile abalone averaging 15.7 g were randomly stocked into 18 50-L plastic rectangular containers each. Six treatments were prepared in triplicate: Abalone were fed the dry sea tangle once a day at a satiation level with a little leftover for 16 wk as the control (Con) and other abalone were fed the dry sea tangle once a day at a satiation level with a little leftover for 15 wk after 1-wk starvation (S1 treatment), 14 wk after 2-wk starvation (S2 treatment), 13 wk after 3-wk starvation (S3 treatment), 12 wk after 4-wk starvation (S4 treatment), and 10 wk after 6-wk starvation (S6 treatment), respectively. A linear relationship between weight change of abalone and wk of starvation was observed: Y (Weight of abalone) = −0.17X (Wk of starvation) + 15.89 (R 2 = 0.9462) (P < 0.0001). The highest survival of abalone was achieved in the S2 treatment, but not different from that of abalone in the Con, S1 and S3 treatments. Weight gain of abalone in the Con treatment was higher than that of abalone in the S4 and S6 treatments. Abalone fed on the dry sea tangle seemed to be able to achieve full compensatory growth up to 3-wk starvation.